Receiver



M. wm.

RECEIVER. v 7 APPLICATION HLED APR 4. I917- IENEWED A". 7

1,321,171. P rental N0v111, 1919.

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3k, 144% wean,

M. WE|L.

RECEIVER.

APPLICATION FILED "11.4, 19w. RENEWED APR. 3. ms.

Patented Nov. 11, 1919.

2 SHEETS-SHEET 2.

awuawtoz JMMM W UNITED STATES PAEPENT OFFICE.

HAIIIILIAH WEIL, O l NEW YORK, 11. Y.

RECEIVER.

Specification of Letters Patent.

Patented Nov. 11, 1919.

Application flied April 4, 1817, Serial Ho. 159,780. Renewed April 8, 1919. Serial Io. 287,848.

To all' ohomitma concern:

Be it known t at I, Maxnuman Wnm, a citizen of the United States of America,

residing at borough of Manhattan, city, coun and State of New York, have inven certain new and useful Improvements of the {invention comprises a pair of suhdantially semio lindrical receivers constructed to be individually connected with the communication each said receiver having on its noncircular face a depressed receiving passage adgpted to be brou ht into communication wi the opening .0 the ear aiid means for form a single receiver having a resultant substantiall c lindrical form similar to the common te ep one receiver, said depressed passa forming a common internal assage of the resultant single receiver to the exterior thereof and adapted to be brought into communication with the opening of an ear of the user. The dupexunitary tion is also applicable for use with an electrical telephone in coaction with suitable acoustic receiving means .adapted to be placed either temporarily or continuously in operative relation to the electrical telephone receiver, in which latter instance the duplex-- unitary acoustic receiver. when not in use may be laced on the receiver hook to break the spea ing circuit connection.

Further features and ob'ects of the invention will be understood m the follow ing detail description and the accompanying drawings, in wh1ch Figures 1 and 2 are respectively side and front elevations of an embodiment of the invention, showing a base for supporting an electrical telephone; Fig. 3 is a top plan view of the base of the aforesaid figures;

to one another to acoustic receiver form of the inven Fig. 4 is a central longitudinal section of my duplex acoustic receivers connected together as a single receiver;

Fig. 5 is aside elevation of one of said T Ie acoustic receivers;

ig. 6 is a transverse section on line 6-4! of Fig. 4;

Fig. 7 is a diagrammatic view showing the invention in use with both ears of the userl ig. 8 is a central longitudinal section of mLduplex electrical receivers connected toget r as a sin is receiver; ig. 9 is a si e elevation of one of said slnlgle electrical receivers;

i 10 is a diagram of he preferred elm-7 trica connections of the electrical parts of Figs. 8 and 9. eferring to Figs. 1, 2 and 3, the electri ioal telephone 1, such as the desk set type,

is preferably provided with a base 2 the de ressed portion 3 for receiving the base 4 of t e telephone 1. The electr cal};

.80 bracket '6 relation to the acousti coni' w th phone receiver'5 may alsobes'upportedjj'on use 2 by meansof the in proper means '7, shown [also as supported" b bracket 8 on the 2. l Said receiving means 7 is acoustical]; nected by the communicating passage. the acoustic receiver 10.,

The du lex acoustic receiver 1f) the comp ementary separate reanvera 11,12, respectively connected to the communication pass 9 by so arate passages 13,14, re spectively joins with said communication passage 9 by. means vof the Y connector 15.

Sai reeelvin means .7 is of any suitable construction an provided with the receivin passa 16 communicating by the nipple 1 with t e tubing 9.

1. The base 3 as contruoted is preferred in view of the advantages of supporting in common the electrical telephone, receiver rest and the receiving means, although certain objects of the invention will be attained by other related supporting means.

Said duplexunitary acoustic receiver is shown in greater detail in Figs. 4. 5 and 6. In Fig. 4, showing both receivers connected as a single receiver, the aural passage 20 of receiver 11 communicates with the tubing 13; similarly, the aural passage 21 of ind1 vidual receiver 12 communicates with the tubing 14.

preferably leads to the exterior opening 22 shown as a recess depressed on the 'noncylindrical face of receiver 11. Said aural opening 22 communicates through the passage 23 with the frontal aural opening 24. Similarly said aural passage 21 of individual receiver 12 communicates with the depressed aural opening 25 leading also through said passage 23 to said frontal aural opening 24.

The specific means of combining the pair of individual receivers 11, 12, is shown in the form of the-tongue 27 carried by receiver 11 on its non-cylindrical face and the groove 28 disposed in the non-cylindrical face of receiver 12, said tongue 27 bein insertible within said groove 28 and the said individual receivers 11, 12 connected as a single receiver by relatively sliding movement.

In Fig. 7 I have shown the individual receivers 11, 12, applied to the two cars of the user, said receivers being connected through the receiver tubing 13, 14 with the main tubing-De- It will a so be clear from Fig. 7 that my duplex receivers are applicable or use in an acoustic communication line, the said tubing 9 serving as the receiving line of the acoustic system to which the acoustic transmitter is connected.

In Figs. 8 and 9 I have illustrated the form of my duplex receiver for use in an electrical telephone system. Said duplex receiver comprises the individual receivers 30, 31 connected or combined with one another by means of the-tongue 32 and groove 33. In receiver 31 I have provided the electromagnet 34 having a air of coils 35 disposed at the poles thereof arranged in operative relation to the diap 36 of magnetic material as will be an erstood by the art. Similagy, in individual receiver 31 I have provid the electro-magnet 37 having the pair of coils 38 dis osed at the poles thereof arranged in suita le relation to the diaphragm 39 of magnetic material as will be understood by those skilled in the art. The pair of terminals 40 connected to the ends of coils 35 are suitably connected in the line and the pair of terminals 41 connected respectively to the ends of the wiring of coils 38 are suitably connected in a similar manner in the telephone line.

The aural opening 42 of receiver 30 'is adapted to be laced in communication with the opening 0 an ear of the user and similarly the aural opening 43 of receiver 31, when the individual receivers are applied to the two ears of the user. Said aural openings 42, 43, when said individual receivers 30, 31, are combined as a single receiver, are related to one another to provide a common unitary passage communicating with the frontal aural opening 44 of the resultant sin le receiver.

11 Fig. 10 I have indicated one form of connection of the coils 35, 35 of receiver 30 and the coils 38, 38 of receiver 31, with the receiving wiring 45, 46, as will be understood from those skilled in the art.

It Will be understood that the individual receivers may be of other resultant shape than substantially cylindrical, the said illustrated shape being advantageous to provide an acoustic or electrical receiver capable of use with the common types of telephone;

It will also be noted that the arrangement of aural opening in both the acoustic and electrical forms of my invention may be modified as circumstances will suggest, consistent with attaining the objects of the invention.

\Vhereas I have illustrated and described my invention b reference to specific forms thereof, it wil be understood that many chan and modifications may be made therem without departing from the inven tion.

I claim.

1. The combination of a plurality of aural receivers and means for connecting said receivers together to form a single aural receiver.

2. The combination of a lurality of aural receivers and means for olding said re ceivers together to form a single aural receiver.

3. The combination of a plurality of aural receivers and means for combining said receivers together to form a single aural receiver.

4. The combination of a plurality of aural receivers, each having a receiving opening and means for attaching said receivers together to provide a common opening communicating with said 0 enings.

5. The combination 0 a plurality of com- Elementary aural receivers, each receiver aving a passage extending to an outer face thereof and means for combining said rereceivers together to provide a common passage communicating with said passages.

6. The combination of a plurality of aural receivers having complementary faces and individual receiving means in each of said receivers.

7. The combination of a plurality of aural receivers, each receiver havin individual receiving means, said receivers iaving complementary faces and means for connecting said receivers unitarily.

8. The combination with a communication line, of a plurality of receivers, each receiver having individual receiving means,

means for connecting said individual receiving means with the line and said receivers havin complementary parts whereby said plura ity of receivers are capable of being assembled as a resultant single receiver.

9. The combination of a plurality of receivers, individual receiving means in each of said receivers and means for combining said receivers together to form a resultant single receiver.

10. The combination of a plurality of receivers, each receiver having individual receiving means, and means for combining said receivers into a single receiver, said resultant single receiver having a single aural openin 11.v he combination of receivers each receiver having individual receiving means and individual aural openings and means for combining said receivers into a resultant single receiver having a single aural open- 15 ing.

12. The combination of a pluralit of receivers each receiver having indivi ual receiving means and an aural openin on a side face and means for combining sai receivers into a resultant single receiver having an aural 0 ening on a front face.

13. e combination of a pluralit of receivers each receiver having indivi ual receiving means, means connecting said receiving means together, said receivers having 25 aural openings on complementary faces thereof, and means for placing said receivers.

In testimony whereof I have signed this specification this 27th da of March 1917.

MAXI ILIAN WEIL. 

